Danger-signal attachment for locomotives



1Q637835 I Q- R SLE 5 DANGER SIGNAL ATTACHMENT FOR-LOCOMOTIVES";

2 Filed Sept. 41926 2 Sham-She. 1,

locomotive whistle whens danger signal is Patented Au 2, 1927.

ime -me or'ro ROESLER, or PHILADELPHIA,-PENNSYLVANIA.-

DANGER-SIGTVAL ATTACHMENT FOR LOCOMOTIVES.

Application filed September 17, 1926. Serial No. 136,682. r

This invention relates generally to attachments .for locomotives, andhas more particular'reference to a novel type of attachment forautomatically operating the passed. I

The invention hasfor an ob ect' t'he provision of Ian-improved device ofthe above mentioned character-Which will be --posit'1've in operation,capable of being readily installed, and which can he manufactnred' andsold at a low cost." i

For further comprehension of the invention, and. of the objects andadvantages thereof, reference will be had to the follow ing descriptlonand accompany ng drawings,

- and to. theap' ended claims inwhich thevarious novel' features of. theinvention are more particularly set' forth.

Referring to the drawings terial part of this disclosure:

Fig. l'is. a side elevational forming a maview of a locomotive with theinvention device applied.

thereto.

2 is a vertical sectional view taken on the line 2-2 'of Fig. 1. I a

Fig. 3 is a fragmentaryvertical sectional view taken on the line'33 ofFig. 2. Fig. 4 is a view similar to: Fig. -3,-but of i a slightlymodified formof. cam element,

and the trip lever mechanism not being shown. M v I Fig. 5 is a,fragmentary enlarged partly sectional side 'view of the mechanismintimately associated with the whistle. I, Fig.- 6 is alverticalsectionalviewtaken on-the 'line'6-6of'Fig. 5. Fig. 7 is a fragmentaryenlarged side ele- Fig. 8 is a plan view thereof.- I v Fig. 9 is a sideelevational view thereof. .Fig. 10' is a front View of a signal withcertain mechanism a'pplied'thereto for operating the cam element Fig. 11is a'plan .view thereof. .Fig. 1-2 is a plan viewof thecam element. I

Fig.1?) is a side view thereof.

Fig. 14 i a fragmentary s1 de 'view of a fieXible connection. betweenthe signal and the cam-element. I i I Y FigfllS-is a plan schematic Viewof the invention-device applied to a switch, to give warning whenth'eswitch is opened or closed.

The reference numerallfi indicates alocova'tional 'view ofthe' trip.lever mechanism. I

motive having a customary steam whistle '16. The locomotive rests onrails 17, and ad- I IJacent said rails,- a signal 18 supported on p'ost19 is shown: The top of rod 20.is pivotally. connected {with the signal18,"and the loottom engages the arm 21. of a pivotally ear segment22,-jmeshing with mounted rack 23, shdably .guidedby support 24 andconnected to one endof rod 25,'to the other end of which cam element 26is fastened.

The cam element- .26 is slidable in grooves 2 7 of bracket28 whichf'isf'z'i'stened to the ties 29, supporting rails 17.

Beneath the locomotive .15, a bracket,29zis fastened. The bracket 29has-a pair, of upwardly projecting tongues 30 adja cent'an aperture 31,aisther' upwardly projecting tongue "32, and. finally another upwardlyprojecting tongue 33 positioned intermediate tongueswand 32.521 triplever 84 is pivoted interniediate'of its ends between tongues 30,; as at35, and projects through aperture-31. 'Co-axia'l with pivot points 35are springs 36; the ends of Which act between the tongues 30 andthelever 34. each spring urging thezlev'er34 in opposite directions, sothat the lever normally remains'vertical.

Aco nnecting' link 37 is pivotallyconnected with level-'34,- andthe-otheinend of the'link is formed with an elongated slot, in which apin 38'engages, said .pin heing'supported in the upper end of ahell-crank 39,- pivotally connected at 40 totongue 33, and the-,other'end of the bell-crank 39 has another pin 41,?

engaged in slot '42 of another connecting link 43, the upper end ofwhich engages one arm of bell-crank. 44. ".The other arm of.loell-cra'nk 44 isconnected to link '45,Ithereafter to severalbell-cranks 46, and links 47,

extending from the bottom ofthe locomotive --t0-'th'e 'top..- Anotherconnecting link 48 ispivotally connected to leven34, the other end ofthelink being formed with an elongated aperture 49, in-which a pin '50is. engaged,

I 'said pin being secured'in one arm of a. bellcrank '51 pivotallymounted at 52 on tongue 33, and the other arm of the bell-crank 5'1 hasanother pin 53 engaged in elongated aperture 54 of the connecting link43. Re-

ferring to Fig. 7 it will henoticed that the elongatedv apertures are soconstructed that when the bottomof lever 34 is moved to the right, link48 moves bell-crank 51-Which inturn moves link 43' downward, pulling oneend ofbell-crank 44 downward. While link 37 idles due to the elongatedslot on'the end of said link. Should the bottom of lever Y 34 be movedto the left,'-link 48 idles due to the elongated slot 49 'in this link,and link 37 moves one arm of bell-crank 39, the other arm pullingdownwardon, link 43, which in turn pulls downward on one arm of the bellcrank 44. I The uppermost link 47 connects with a link 55 having anaperture 56 and slidably guided by bracket 57 depending from thelocomotive proper-15. Another bracket 58 is also fixed to the locomotiveproper, and slidably supports a rod 59 normally urged forward byco-axially mounted spring .60. The rear of rod 59 is pivotally fastenedto a lever 61 pivoted at 62 and having a connection lead 63. The top oflink 55 is pivotally connected to another link 64formed at one end withan elongated aperture 65 in which pin 66 engages. The pin 66 issupported in one arm of bell-crank 67 pivotally mounted as at 68, andthe other arm of the hell-crank connects with line 69 having one endfastened to one arm of bell-crank 70' pivotally mounted at 71. The otherarm of bell-crank 70 connects with the plunger 72 of the steam whistle16. p

'In'the operation of the device, as the sig nal 18 moves from the clearposition to the danger position, the rod 20 commuicates the motion togear segment 22, thereafter to rack 23, rod 25 and finally to the camelement 26. n the danger position the cam element lies in the path ofmotion of trip lever 34, while in the clear position it is off the pathof motion of the trip lever. Regardless of the direction of motion ofthe locomotive, as the' trip lever is moved, the bell-crank 44 will bedrawn downwardly, as previously ex-' plained. This motion iscommunicated to links 47, thereafter to link 55, and as the link 55moves downwards, spring 60 causes rod 59 to engage in aperture 56,holding this link in its downward position until it is released by thelocomotive operators pulling connection 63. When the link is in the saiddownward position, the steam whistle operates, because of theconnections therewith,

namely bellcrank 7 0, line. 69, bell-crank 67,

link 64, and link 55. The locomotive operator may sound the whistle 16by pulling line 69, and this motion will notaffect other parts of themechanism due to the pin 66 riding in slot 65.

Iii-Figs. 3 and 4, a bracket 73 is shown depending from the locomotivebottom, and a. plunger 7 4 to scrape the rails 17 is slidably mounted inthe bracket. normally urged The other end of cam element 26 has a fas-'tening means 78 for engagement with rod with the trip lever 34.

The rod 25 moves the cam element 26 into and out of the line of movementof the trip lever 34.

Fig. 14 shows a. modification of rod 25,

namely the rod is formed of two parts 25 and 25 fiexibly joined by meansof a flange 82' on rod'25 said flange 82 engaging the ends of a bentmember 80 slidable in' a'slot- -81 in rod 25*,the said rod 25 having acap member 79 slidable against the bent member 80, while spring 83 actsbetween cap member 79 and bent member 80. It is readily seen While Ihave illustrated and described my invention with some degree ofparticularity,

I realize that in practice various alterations therein may be made.theright and privilege of changing the form of the details ofconstruction or otherwise altering the arrangement of the correlatedparts without departing from the spirit or the scope of the appendedclaims.

Having thus described. my inventiomwhat I claim as new and desire tosecure by United States Letters Patent is:

1. In a device of the class described,

ing a whistle on top of a locomotive proper, the combination of abracket fastened to the bottom of said locomotive, said bracket havingan aperture, a-pairof tongues adjacent said aperture, a third tonguedepending from said bracket, and a fourth tongue between said pair oftongues and said third tongue, a trip lever pivoted'to said pair oftongues, means for resiliently holding said trip lever vertical, a linkpivoted to said trip lever, said link being formed with an elongatedaperture on one end, va bell-crank pivoted to said fourth tongue, a pinin one arm of said bell-crank engaging in said 'elon gatedslot, anotherpin in the other arm of said bell-crank, a second link having twoelongated slots, said second pin engaging in one of said elongatedslots, av bellfcrank p1voted tosaid third tongue, sa1d'last mentionedllnk belng connected WIth- OIIQ arm of said bell-crank, a. third linkconnect;

ed with said trip lever, said last mentioned link being formed with anelongated ape-rture, a pin engaged in said last mentioned aperture, abell-crank pivotally connected to said fourth tongue, said lastmentioned bellcrank supporting said last mentioned pin, and another pinin the last mentioned bell- I therefore reserve crank, saidlastmentioned pin engaging the second elongated aperture of said link withthe two elongated apertures, and means connected with'the bellcrankpivoted to saidfrom said-bracket, and .a fourth tongue between saidpairof tongues and said third tongue, a trip lever-pivoted to said pairoi tongues,'means for resiliently holding said trip lever vertical, alink pivoted to said trip lever, said lin k being formed With anelongated aperture on oneend, a bell-crank pivoted to said fourthtongue, a pin in one arnrof said bell-crank engaging in said elongatedslot, another pin in the other arm or" said bell-crank, a second linkhaving two elongated slots, said second pm engaging in one of said elonated slots, a bell-crank pivoted to said thir tongue, said lastmentioned link being connected with one -arm' oi said 'bell-crank, athird link con'nected with said trip lever, said last mentionedlink-being formed with an elongated aperture, a pin engaged in said lastmentioned aperture, a bellcrank pivotally connected to said fourthtongue, said last mentioned bell-cranksupporting said last mentionedpin, and another ,pin in the last mentioned bell-crank, said lastmention-ed pin engaging the second elongated aperture of said link withthe two elongated apertures, and, means connected with the bell-crankpivoted to said third tongue for operating said whistle, said lattermeans comprising a series of links and bell-cranks.

3. In a device of the class described, having a whistle on top of alocomotive proper, the combination-of a bracket fastened to the bottomof said locomotive, said bracket 'having an aperture, a pair of tonguesadjacent said aperture, a third tongue depending from said'bracket, anda fourth tongue between said pair of tongues and said third tongue, atrip lever pivoted to said pair of tongues,

' means for resiliently holding said trip lever verticaha link pivotedto said trip lever, said link being formed with an elongated aperture onone end, a bell-crank pivoted to said-fourth tongue, a pin vinone arm ofsaid bell-crank engaging in said elongated slot, another pin in theother arm of said bell-cranln'a. second link having two elongatedslots,: said second pin engaging in one of said elongated slots, abell-crank pivoted to said third tongue, said last mentioned link beingconnected withone arm of said bell-crank, a. third link connected withsaid trip lever, said last mentioned link being formed with an elongatedaperture, a pin ening an aperture, .a pair of tongues adjacent. I saidaperture, a third tongue depending gaged in said last mentionedaperture, a bellcrank pivotally connected to said fourth tongue, saidlast mentioned bell-crank supporting said last mentioned pin, andanotherpin in the'last mentioned bell-crank, said last mentioned pinengaging the second elongated aperture'ot' said link with the twoelongated apertures, means connected with the bell-crank pivoted to saidthird tongue for operating said whistle, and -means for releasablylockingsaid-whistle in operating condition upon the lever.

4;.In a device of the class described, having a whistle on top of alocomotive proper,- the combination of a bracket fastened to the bottomof said locomotive, said bracket hav operating o f'said trip ing anaperture, a: pair of tongues adjacent said aperture, a third-tonguedepending from said bracket, and-a fourth tongue between said pair oftongues and said third tongue, a trip lever pivoted to said pair oftongues,

I means for resiliently holding said trip lever vertical,said meanscomprising springs mounted co-axially with .the pivot point'ot saidlever, the ends ofsaid springs acting against said lever. and said pairof tongues, and said springs acting in opposite irections, a linkpivoted to said trip leve'rfsaid linkbeing formed [with an elongatedaper' hire on one end, a bell-crank pivoted to said fourth tongue, a pinin one arm ofsaid bell crank engaging in said elongated slot, an-

other pin in the other arm of said bell- I crank, a second linkhaving'two elongated slots, said second pin engagingfinone of saidelongated slots, a bell-crank pivoted to' said third tongue, said lastmentioned link beino connected with. one armot said bellcranli, a thirdlink connected with said trip I lever, said last mentioned link beingformed with an elongated aperture, a pin engaged in said last mentionedaperture, .a bell-crank pivotally connected to said fourth tongue, saidlast mentioned bell-crank supporting said last mentionedpin, and anotherpin in the last mentioned bell-crank, said last men- 'tioned pinengaging the second elongated aperture of said link with thetwoelongated apertures, and means connected with the l bell-crankpivotedto said third tongue for operating said whistle.

5. In aidevice of the class described. hav-' ing a whistle on top of alocomotive proper, the combination of a, bracket fastened to the bottomof said locomotive, said bracket having an aperture, a pair of tonguesadjacent said aperture, a third tongue depending from said bracket, anda fourth tongue between said pair of tongues and saidthird tongue, atrip lever pivoted to said pair of tongues, means for resilientlyholding said trip lever vertical, a link pivoted to said trip lever,said link being formed with an longated aperture on one end, abell-crank pivoted to said fourth tongue, a pin, in one arm of saidbell-crank engaging in said elongated slot, another pin in the other armof said bell-crank, a second link having two elongated slots, saidsecond pin engaging in one of said elongated slots, a bell-crank pivotedto said third tongue, said last mentioned link being connected with onearm oi said bell-crank, a third link connected with'said trip lever,said last mentioned link being formed with an elongated aperture, a pinengaged in said last mentioned aperture, a bell-crank pivotallyconnected to said fourth tongue, said last mentioned bell-cranksupporting said last mentioned pin, and another pin in the last mentonedbell-crank, said last mentioned pin engaging the second elongatedaperture of said link with the two elongated apertures, means connectedwith the bell-crank pivoted to said third tongue for operating saidwhistle, and means for releasably locking saidwhistle in operatingcondition upon the functioning of said trip lever, said last mentionedmeans comprising a rod normally urged forward by a spring, and one linknear said whistle being formed with an aperture engageable by said rod.

In testimony whereof I have aflixed mv signature.

OTTO ROESLER.

